ASTRO VG-871 - GRACLR4 [28 H 40 H]: Graphic Plane Clear

Chapter 4 INDIVIDUAL FORMATS FOR CONTROL COMMANDS
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3.15 GRACLR4 [28H 40H]: Graphic Plane Clear
Function ： This command clears the graphic plane
Sequence ： Type 2
Command ：
STX
1 BYTE
02H
VG4CMD
1 BYTE
FDH
GRACLR4
2 BYTE
28H 40H
ETX
1 BYTE
03H
Figure 3-15-1
PC
VG
STX～ETX
ACK or STX +ESTS+Error
code +ETX